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タイトル: | Mechanical characterization of nanoporous Au modified with self-assembled monolayers |
著者: | Miyazawa, Naoki Ishimoto, Junya Hakamada, Masataka https://orcid.org/0000-0002-8082-2148 (unconfirmed) Mabuchi, Mamoru https://orcid.org/0000-0002-0894-6306 (unconfirmed) |
著者名の別形: | 宮澤, 直己 石本, 淳也 袴田, 昌高 馬渕, 守 |
発行日: | 26-Dec-2012 |
出版者: | AIP Publishing |
誌名: | Applied Physics Letters |
巻: | 109 |
号: | 26 |
論文番号: | 261905 |
抄録: | The surface of nanoporous Au was modified with self-assembled monolayers (SAMs) of 6-mercapto-1-hexanol and the hardness tests were performed on the SAM-modified and non-modified nanoporous Au to investigate the effects of SAM modification on the mechanical properties of nanoporous Au. In addition, the origin of the chemomechanical effects was investigated by first principles shear test simulations on an Au–S alloy. The SAM-modified nanoporous Au showed lower hardness than the non-modified nanoporous Au. The loading rate dependence tests showed that the activation volume was low for both, indicating that events of a short range play an important role in deformation of nanoporous Au, regardless of whether the nanoporous Au was modified with SAMs. It was suggested from the simulations that the lower hardness for the SAM-modified nanoporous Au is because movement of dislocation endpoints at the surface is facilitated by chemical effects of Au–S bonding. |
著作権等: | © 2016 Author(s). The following article appeared in 'Appl. Phys. Lett. 109, 261905 (2016)' and may be found at https://aip.scitation.org/doi/abs/10.1063/1.4972780. The full-text file will be made open to the public on 26 December 2017 in accordance with publisher's 'Terms and Conditions for Self-Archiving'. |
URI: | http://hdl.handle.net/2433/237612 |
DOI(出版社版): | 10.1063/1.4972780 |
出現コレクション: | 学術雑誌掲載論文等 |
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